Question 1

What is the ABTF calculator?

Accepted Answer

The ABTF calculator is a six-measurement bra size tool inspired by the community at A Bra That Fits. It combines three underbust readings and three bust readings to suggest a realistic starting band and cup range instead of a single guess.

Question 2

Do I need to measure in inches for the ABTF method?

Accepted Answer

You can measure in either inches or centimetres. The calculator converts automatically, so focus on getting accurate measurements taken on bare skin with a flexible tape.

Question 3

Is this tool affiliated with the A Bra That Fits community?

Accepted Answer

No. This is an independent implementation that follows the publicly documented ABTF measuring approach. All interface design, code, and copy have been created for our site.

Question 4

What should I do after I get my ABTF size range?

Accepted Answer

Use the suggested sizes as a try-on shortlist. From there, explore brand conversions, compare sister sizes, and run a fit check to confirm support, comfort, and cup coverage.